Is it all about early occupational expectations? How the gender gap in two science domains reproduces itself at subsequent stages of education: evidence from longitudinal PISA in Australia

Although the gender gap in non-compulsory science attracts much attention, few studies compare factors that shape it at subsequent life stages. Here, a life-course approach is used to examine the gender gap in science career expectations at ages 16, 23 and 26 for a recent student cohort. Then, a decomposition is applied to assess what share of the gender gap in Year 12 science, university science and post-university employment depends on earlier expectations to pursue a science career. The data, collected between 2006 and 2016, come from the population-representative Longitudinal Survey of Australian Youth, initiated with the Australian sample of the Program for International Student Assessment (PISA). Pathways into two science domains are contrasted. The first is biological and health sciences (BAH), the second entails computing, engineering, physics and mathematical sciences (CEM). The gender gap in occupational plans to work in science is widest in adolescence before stabilising in young adulthood. Yet, adolescence is also a life stage at which science is most popular as a potential career. Prior to university entry, up to one third of the gender gap in science can be attributed to individual motivation or characteristics. What can be explained, depends predominantly on occupational goals.